Check if tradelink is valid

[Rodrigo]

To verify if a user’s tradelink is valid I usually would create an offer using the tradeLink and calling getUserDetails on that offer. But if the user renew his tradelink, only the token value is being changed and I feel like my method isn’t the most realiable since is not throwing me errors when I try to get userDetails. 
 

Is there any other realiable way to verify for a valid tradeLink?

[Dr. McKay]

Calling getUserDetails is the correct way to check. You'll still get an error if the token is wrong, but not if you're friends with the user.